* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html,
body {
  width: 100%;
  height: 100%;
  background: url(../images/login_bg.jpg) no-repeat center/ cover;
}
.login-background {
  position: absolute;
  width: 360px;
  height: 280px;
  background-color: #fff;
  border-radius: 5px;
  left: 50%;
  top: 50%;
  transform: translate(-50%,-50%);
  padding: 20px;
}
.layui-input-block{
  margin-left: 0;
}
.images {
  margin: 20px 0 20px 80px;
}
.layui-btn{
  margin-top: 20px;
}